LOL, I think darkling beetles look a lot like roaches, but knowing they're beetles makes me less grossed out
Actually, I've become so intrigued with them, and because they can be so easily contained, and they can't live outside the nice environment we provide really, they're not nearly as creepy!
When you ditch the cornmeal, it won't be wasted.

Just soak it in water overnight, then feed it to the chickens!

(If you have redworms, they'll LOVE it, too!)
If you decide to blenderize your bran, please remember to wear a mask. The respiratory issues that can result from breathing the fine dust (with or without mealworm allergens in there) are miserable! The mask is TOTALLY worth wearing.
I'm probably going to have to restock come spring--I think the recent freezing nights have largely eliminated most of my worms.

I'll find out over the next few days as I go through and sort 'em out for intentional freezing. *sigh* Have to find a better way!
Yes, I wear them all the time when using chemicals and doing anything that's dusty, you are so right, prevention prevention prevention! Man, the stuff I've seen men do out on construction sites! Painters washing their hands with gasoline or acetone etc... not to mention the dust with no mask! They're going to have messed up lungs and nervous systems when they're in their 40's, I used to lecture 'em but they never listen
(hell, they gotta be in their 50's now! LOL)
I too had a problem with grain mites and I bake my substrate before using it, where did I go wrong? Well I was keeping the mealworms in the garage due to their smell, but I was also keeping the chicken scratch, chicken feed, and meal worm substrate in the garage as well. I thought I had everything far enough away from my mealworms but I guess not. It can't be a high humidity issue because we have below 20% humidity year round, I found that once the garage heated up during the summer ( around 90 degrees) the grain mites died off and I thought I was in the clear, but then when temps started cooling back down they returned and at that time I had moved them indoors to keep them active. The grain mites got so bad I just decided to feed everything out to my girls and I'll start over again in the spring!
Good luck, I hope I saved mine. The ones I put through the ringer seem to be active so I'm hoping I can rebuild!
Does anyone know of a way to raise worms (meal or others that chickens like) without using bran, but using something that is easier to grow or scavenge for free, like leaf litter or wood chips or potatoes, cabbages, and carrots? Or how about even crumbled up bread (I have access to free stale bread!) Has anyone tried this, I am trying to find the cheapest and most nutritional way to feed the chickens....
With bread, they love it (eat holes all over it) but you MUST be on top of it and remove it before it gets moldy, or you'll kill more than you feed!
What kind of bran? I feed my horse rice bran, but it's like $40 for 25lb bag lol. What type and where is it bought at?
Wheat bran, and since we live in the city, we get it at Sprouts, or Whole paycheck, but you don't need much...? It takes a long time for them to go through the stuff.
Also, you can do a compost pile and raise earth worms, they're great
LOL, I think darkling beetles look a lot like roaches, but knowing they're beetles makes me less grossed out